JPS56167783A - Fluorescent substance - Google Patents

Fluorescent substance

Info

Publication number
JPS56167783A
JPS56167783A JP7338780A JP7338780A JPS56167783A JP S56167783 A JPS56167783 A JP S56167783A JP 7338780 A JP7338780 A JP 7338780A JP 7338780 A JP7338780 A JP 7338780A JP S56167783 A JPS56167783 A JP S56167783A
Authority
JP
Japan
Prior art keywords
terbium
yttrium
silicate
scandium
brightness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7338780A
Other languages
Japanese (ja)
Other versions
JPS6121505B2 (en
Inventor
Kenzo Awazu
Kazu Matsunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7338780A priority Critical patent/JPS56167783A/en
Publication of JPS56167783A publication Critical patent/JPS56167783A/en
Publication of JPS6121505B2 publication Critical patent/JPS6121505B2/ja
Granted legal-status Critical Current

Links

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  • Luminescent Compositions (AREA)

Abstract

PURPOSE: A fluorescent substance of a specified composition with improved brightness, emitting green light by excitation by means of an electron beam and UV ray, which is prepared by partially substituting yttrium silicate with scandium followed by activation with terbium.
CONSTITUTION: A terbium-activated yttrium scandium silicate of formula Y2-x-y ScxTbySiO5 (wherein x=y/2W4 in molar ratio; y=0.12W0.18). The yttrium terbium silicate is obtd. by mixing finely powdered yttrium oxide, terbium oxide and silica and calcining the resulting mixture. at a temp ≥1,300°C in N2 atmosphere contg. about 5vol% hydrogen. Partial substitution of yttrium in the silicate with scandium improves brightness. About 0.12W0.17mol of terbium is usually introduced as an activator, and the brightness is increased by about 10% by calcination with addition of about one third of said amt. of scandium.
COPYRIGHT: (C)1981,JPO&Japio
JP7338780A 1980-05-28 1980-05-28 Fluorescent substance Granted JPS56167783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7338780A JPS56167783A (en) 1980-05-28 1980-05-28 Fluorescent substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7338780A JPS56167783A (en) 1980-05-28 1980-05-28 Fluorescent substance

Publications (2)

Publication Number Publication Date
JPS56167783A true JPS56167783A (en) 1981-12-23
JPS6121505B2 JPS6121505B2 (en) 1986-05-27

Family

ID=13516724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7338780A Granted JPS56167783A (en) 1980-05-28 1980-05-28 Fluorescent substance

Country Status (1)

Country Link
JP (1) JPS56167783A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331738A1 (en) * 1987-08-10 1989-09-13 Mitsubishi Denki Kabushiki Kaisha Green light emitting rare gas discharge lamp
JP2006241246A (en) * 2005-03-01 2006-09-14 Nec Lighting Ltd Vacuum ultraviolet-excited red phosphor and light emitting device using the same
JP2006274033A (en) * 2005-03-29 2006-10-12 Nec Lighting Ltd Vacuum ultraviolet ray-excited fluorescent substance and light emitter using the same
JP2006335778A (en) * 2005-05-31 2006-12-14 Hitachi Displays Ltd Image display device
US7161287B2 (en) 2003-11-12 2007-01-09 Nichia Corporation Green emitting yttrium silicate phosphor and cathode-ray tube using the same
US7524476B2 (en) 2003-11-13 2009-04-28 Nec Corporation Vacuum ultraviolet excited green phosphor material and light-emitting device using the same
CN102191053A (en) * 2010-03-01 2011-09-21 海洋王照明科技股份有限公司 Preparation method of silicate luminescent material and silicate luminescent material prepared by same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331738A1 (en) * 1987-08-10 1989-09-13 Mitsubishi Denki Kabushiki Kaisha Green light emitting rare gas discharge lamp
US7161287B2 (en) 2003-11-12 2007-01-09 Nichia Corporation Green emitting yttrium silicate phosphor and cathode-ray tube using the same
US7524476B2 (en) 2003-11-13 2009-04-28 Nec Corporation Vacuum ultraviolet excited green phosphor material and light-emitting device using the same
JP2006241246A (en) * 2005-03-01 2006-09-14 Nec Lighting Ltd Vacuum ultraviolet-excited red phosphor and light emitting device using the same
JP4679180B2 (en) * 2005-03-01 2011-04-27 Ｎｅｃライティング株式会社 Red vacuum ultraviolet excited phosphor and light emitting device using the same
JP2006274033A (en) * 2005-03-29 2006-10-12 Nec Lighting Ltd Vacuum ultraviolet ray-excited fluorescent substance and light emitter using the same
JP2006335778A (en) * 2005-05-31 2006-12-14 Hitachi Displays Ltd Image display device
US7656081B2 (en) 2005-05-31 2010-02-02 Hitachi Displays, Ltd. Imaging device with specific phosphor
CN102191053A (en) * 2010-03-01 2011-09-21 海洋王照明科技股份有限公司 Preparation method of silicate luminescent material and silicate luminescent material prepared by same

Also Published As

Publication number Publication date
JPS6121505B2 (en) 1986-05-27

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